Cat scratching post



FIG. 1 is a perspective view of a cat scratching post;

FIG. 2 is a top plan view thereof; and,

FIG. 3 is a side elevational view thereof, as seen from the top view, all side views are identical.

The dashed lines shown in the drawings represent stitching and form part of the claimed design. The shading indicates a leather-like surface treatment. 

The ornamental design for a cat scratching post, as shown and described. 